
Dicey perimeter, dicey area

The moons of Vuvv
The planet of Vuvv has seven moons. Can you work out how long it is between each super-eclipse?

Plenty of pens
Amy's mum had given her £2.50 to spend. She bought four times as many pens as pencils and was given 40p change. How many of each did she buy?

First connect three



Round the four dice

Round the three dice
What happens when you round these three-digit numbers to the nearest 100?


Round and round the circle
What happens if you join every second point on this circle? How about every third point? Try with different steps and see if you can predict what will happen.

Making cuboids

Mystery matrix

Factor lines
Arrange the four number cards on the grid, according to the rules, to make a diagonal, vertical or horizontal line.

Orange drink
A 750 ml bottle of concentrated orange squash is enough to make fifteen 250 ml glasses of diluted orange drink. How much water is needed to make 10 litres of this drink?

Factor-multiple chains
Can you see how these factor-multiple chains work? Find the chain which contains the smallest possible numbers. How about the largest possible numbers?

Button-up some more
How many ways can you find to do up all four buttons on my coat? How about if I had five buttons? Six ...?


Different deductions
There are lots of different methods to find out what the shapes are worth - how many can you find?

Two and two
How many solutions can you find to this sum? Each of the different letters stands for a different number.

Quadrilaterals
How many DIFFERENT quadrilaterals can be made by joining the dots on the 8-point circle?

Ten hidden squares
These points all mark the vertices (corners) of ten hidden squares. Can you find the 10 hidden squares?

Triangles all around
Can you find all the different triangles on these peg boards, and find their angles?